baber/WOPTO huggingface dataset:
Patent DE-3928424-A1 (DE)
Inventor: TAKAHIRA KOJI
IPC: B60C9/00
Filed: 1989-08-28
Abstract: Pneumatic tires are at least partially reinforced in the carcass or belt layer, with steel cords wherein most of the steel filaments for the cords are made of iron materials having a carbon content of 0.80-0.95% and the toughness of the steel filaments determined by the product of the tensile strength in kg/mm<2> and the reduction of area is higher than 135 kg/mm<2> and said steel cords may include high-elongation steel cords having at least 4% elongation at break. The tensile strength is determined by dividing a breaking load by the cross-sectional area, and the reduction in area is determined by directing the difference in sectional area, before and after breaking, by the original sectional area.
Patent DE-3929968-A1 (DE)
Title: Strap with ear pieces for sports helmets - has easily fixable and detachable connectors withstanding crash strain
Inventor: BUSEN MANFRED
IPC: A42B3/08
Filed: 1989-09-08
Abstract: The strap for sports helmets comprises two pairs of head bands fixed to the edge of the helmet with each pair embracing the ear. A chin strap connects with the head bands by means of connectors (4) at each side. At least one of the connectors comprises two flat parts (41, 42) which rest with their main sides on top of each other and which are provided with a snap connection (43) which runs across the main sides and which is detachable when required. A mushroom or conically expanding detent head (44) can be provided on one connector part (42) whilst a detent opening (45) can be provided on the other flat part (41). USE/ADVANTAGE - The strap is easy to undo and doup but since its opening action is across the normal strain of release the strap is held secure in the event of an accident.
Patent DE-3941820-A1 (DE)
Title: Dental casting alloy - contg. cobalt, chromium, silicon, molybdenum, carbon, and nitrogen, used in laser welded tooth replacement parts
Inventor: LINDIGKEIT JUERGEN DR ING
IPC: A61K6/04
Filed: 1989-12-19
Abstract: Co-Cr dental casting alloy contains 28.5-29.5 wt. % of Cr, 6.4-6.55% of Mo, 0.65-0.75 % of Si, 0.75-0.85 % of Mn, 0.18-0.21% of C, 0.17-0.2% of N bal of Co; the C content is at least as large as the N content. C content is larger than the N content, pref. by 0.1 wt. %. The pref. compsn. is 29.0% of Cr, 6.5% of Mo, 0.7% of Si, 0.85% of Mn, 0.20% of C, and 0.19% of N,. bal of Co. USE/ADVANTAGE - Used to prepare laser-welded tooth replacement parts. Alloy is easily welded, esp. by lasers, eithout formations of microcracks, whilst retaining good strength, fracture strength, corrosion resistance and hardness.
Patent DE-3943089-A1 (DE)
Title: Controller of operating revolution rate of processing machine - has product sepn. sensors and EPROM controlling drive motor for enhanced productivity
Inventor: STOERR RUDOLF DR
IPC: G05B19/07
Filed: 1989-12-27
Abstract: A counter which detects the separation distance of the products on a conveyor path is connected after a sensor (4) which detects the products (7). The counter is connected to an EPROM (18) which is also connected to two or more sensors (5, 6) arranged before the processing machine to detect an excess or lack of products within a section of the conveyor path. The output of the EPROM is connected to a drive motor (20) via a control element (19). An arrangement which detects and counts the products leaving the processing machine is connected to the EPROM via a divider (16) connected to a clock generator (17). USE/ADVANTAGE - For regulating operating revolution rate of processing machine. Product delivery involves continuous control of revolution rate, arrangement enables  productivity of such machines to be increased without increasing rate of wear.
Patent DE-4004172-A1 (DE)
Title: Oxygen sensor for air-fuel mixt. control - has protective metal oxide layer contg. oxygen storing component
Inventor: SAWADA TOSHIKI
IPC: C04B35/49
Filed: 1990-02-11
Abstract: (A) In an oxygen sensor for air/fuel mixt. control having a sensor element, comprising electrodes arranged on both sides of an oxygen ion-conductive main body, and at least one protective layer covering the electrode on the side exposed to the gas (esp. exhaust gas) to be measured, (i) the protective layer consists of a heat resistant metal oxide, which contains an oxygen storing component (OSc) without the presence of a precious metal catalyst and which extends at least over the measuring-side electrode, and the main body consists of a basic section and a number of spherical projecting sections for interlocking joining of the protective layer with the basic sections; or (ii) first and second protective heat resistant metal oxide layers are provided on the measuring side of the sensor element, the first layer being nearer the electrode than the second layer and contg. a precious metal catalyst, while the second layer contains an oxygen storing component (OSC) without the presence of a precious metal catalyst; or (iii) first and second protective heat resistant metal oxide layers are provided on the measuring side of the sensor element, the first layer being nearer the electrode than the second layer and contg. an oxygen storing component (OSC) without the presence of a precious metal catalyst.
Patent DE-4011825-A1 (DE)
Title: Web materials processing roller induction heater - has induction loop with variable length to give different heating zones
IPC: H05B6/42
Filed: 1990-04-12
Abstract: The effective length of the conductor loop (4) is varied mechanically using telescopic legs for the loop. The ends of the legs (4',4'') are not connected directly but can be linked by a cross piece to hold them in place longitudinally, and the cross piece can slide along the legs (4',4''). The cross piece can also be inserted at a choice of longitudinal positions. The ends of the axially parallel legs can be joined together by channels of electrically non-conductive material. A coolable and electrically conductive cover plate (7) is inserted between the end of the loop and the roller surface, from the end of the roller (10) in an axial direction. The effective length of the loop can be altered electrically or electronically to vary the current flow at different zones of the axially parallel legs through the arrangement of linking cross pieces, and electric or electronic switches. Thyristors are placed at the cross pieces with different scanning ratios set by a control system. USE/ADVANTAGE - Induction heating system for a roller, to process web materials. The structure allows variable heat adjustment along the roller length, especially at the ends.
Patent DE-4014413-A1 (DE)
Title: Drawn filament wadding layer - has cooling and process air chambers in filaments path with controlled suction drawing
Inventor: BALK HERMANN DIPL ING
IPC: D04H3/16
Filed: 1990-05-04
Abstract: The appts. to lay a wadding of drawn manmade filaments, delivered from a spinerette, has a cooling chamber (5) with the air flowing through from one side to the other open side (10). Two air streams, moving against each other, are fed into the chmaber (6) for process air.  An air divider (11) is between the cooling chamber (5) and the process air chamber (6), at least across the width of the filament curtain (4), to separate the coolant air from the process air, and allow the filament curtain (4) to pass through. The air flow vol. of the suction unit (9) is controlled to determine the deg. of drawing applied to the filaments through the suction action. ADVANTAGE - The appts. lays the filaments in a wadding in predetermined physical parameters, within narrow limits.
Patent DE-4017064-A1 (DE)
Title: Card web and sliver splicing
Inventor: KLUETTERMANN JUERGEN DIPL ING
IPC: B65H54/76
Filed: 1990-05-26
Abstract: In the automatic process to join a fibre web to a sliver, such as at a card, the web is advanced at a unified speed in the start phase, and is brought together by a collection funnel into a sliver at the splicing stage. The sliver is severed above the carrier system, and the projecting sliver end from the funnel is moved with the funnel and/or the take-off rollers are moved to bring the projecting sliver end into the gap between the take-off rollers. The web carrier mechanism (9) is below the roller assembly (6, 7, 8), vertically or at an angle, and the sliver carrier, together with the collection funnel (10), is below the web carrier (9) and above the pair of take-off rollers (11a, 11b). The web carrier has at least one pair of rollers and static guide surfaces, or at least one conveyor belt. The sliver carrier has a pair of roller or a suction unit with an extractor at its outlet to remove loose fibres. The take-off rollers (11a, 11b) have a grooved and a sprung roller. At least one side wall of the funnel (10) is movable, and a slit through the funnel side wall is fitted with a closure. A clamp in the funnel (10) severs the sliver. The position of the funnel (10) can be shifted at right angles to the feed rollers and the take-off rollers (11a, 11b), and can be moved to and fro horizontally. The feed rollers and the take-off rollers (11a, 11b) can be moved horizontally in both directions. The feed rollers and take-off rollers are mounted coaxially to each other, and the take-off rollers (11a, 11b) act as the press rollers for the sliver can guide, and the funnel acts as the sliver guide to the can guide with measurement pincers to determine variations in silver thickness.
Patent DE-4017614-A1 (DE)
Title: Topography simulation e.g. for etching semiconductor - uses modified diffusion model having lattice of virtual points in space occupied by workpiece
Inventor: UCHIDA TETSUYA
IPC: G06F17/50
Filed: 1990-05-31
Abstract: Topographical simulation process is used for estimating the topography of a workpiece undergoing several machining processes, e.g. semi-conductors produced using a wet chemical etching process on a silicon substrate (20) with a silicon oxide film (21) and a covering mask (22). It has the novelty of using a modified diffusion model and a grid of virtual points in the space occupied by the workpiece. ADVANTAGE - The technique facilitates simulation of different prodn. processes, provides a high degree of accuracy and uses a limited amount of stored data.
Patent DE-4020854-A1 (DE)
Title: Energy reclamation for IC engine exhaust - has exhaust gas driven turbine coupled to vehicle transmission
Inventor: STURM MICHAEL
IPC: F02B61/06
Filed: 1990-06-29
Abstract: The turbine (81) is driven by the exhaust gases and coupled to a drive shaft (65) via a fluid clutch (61). The engine is coupled to the transmission via a clutch (11) on the crankshaft and can thus be isolated from the transmission. Any surplus energy from the exhaust turbine drives the transmission or any ancilliary equipment. The turbine can also drive a generator, the power output from the generator being fed back to the transmission. No direct power feed is taken to the engine, preventing increasing engine speed. The gluid clutch can be replaced by an e.m.  turbulence clutch. The turbine can be switched in or out by a setting lever (51) operating contact switches for the current circuit of a setting motor. ADVANTAGE - Energy efficient; does not affect speed control of engine.
Patent DE-4026818-A1 (DE)
Title: Boxing training punch bag - has height-adjustable torso-shaped punch bag with operating platform, with rollers and sprung link unit
Inventor: HOFFMANN HERBERT
IPC: A63B69/34
Filed: 1990-08-24
Abstract: The boxing-training appliance has a height-adjustable, torso-shaped, padded punch-taker the reaction of which can be adjusted. An operating stage (6) can be tilted by means of rollers (5) and is positioned on a sprung-link unit (3) and Cardan link by tightening a height-adjustable half-doll torso (1) by a pipe (2) with adjustable springiness. The sprung-link unit (3) consists of two interlocked spiral springs (3) of roughly the same dia, and a Cardan or ball link (4) USE/ADVANTAGE - The economical boxing-training appliance can be used for children and young people.
Patent DE-4029660-A1 (DE)
Inventor: DUERLOO PAUL-RENETT
IPC: B01D53/26
Filed: 1990-09-19
Abstract: A process is described for drying natural gas and for recycling of the water solvent used for this, in which process the natural gas is heated as required and is passed through a contacting device and in which the water solvent is recycled in a distillation device; an apparatus is also described for drying natural gas and for the recycling of the water solvent used for this, comprising a contacting device for natural gas and water solvent and a distillation device provided with a boiling chamber and distillation column, and comprising heating devices, heat exchangers and piping. The aim of the invention is to provide a simple method for drying the natural gas with less expenditure in terms of apparatus and with reduced energy consumption. The invention comprises coupling the process for drying natural gas with the process for recycling the water solvent, the water solvent being used as heat carrier for heating the natural gas, and also comprises the apparatus for heat producers and heat consumers allowing a separate constructional form.
Patent DE-4033862-A1 (DE)
Title: Recycling thermoset resin parts from old trabant car bodies - by crushing and granulating, mixing with pre-condensed resin binder, and compression moulding, etc.
Inventor: PICKENHAN UWE
IPC: B09B3/00
Filed: 1990-10-22
Abstract: Recycling thermoset resin components (I) of old Trabant car bodies, for the mfr. of technical prods. consisting entirely or partly of recycled thermosetting materials; the process involves (a) removing the planks of (I) from the car, (b) granulating the parts, (c) mixing with a precondensed resin binder (II) and (d) permanently shaping the mixt. as required, by compression moulding or other suitable method. Pref., the granules produced in (b) can be also converted into coke by pyrolysis, or used as insulating material (directly or after further milling). USE/ADVANTAGE - Large amt. of thermosetting resin are recycled for the mfr. of useful prods., e.g. chipboard etc. for building applications, roofing sheet, asbestos board substitutes, sound-insulation walls, palettes, garden prods., fillers for plastics, etc.. The recycled material is heat-resistant, resistant to boiling water, dimensionally stable, mechanically workable and corrosion resistant, and can be pigmented.
Patent DE-4034499-A1 (DE)
Title: Heat fixing unit for printer or copier - has air outlets in preheating and cooling regions in underside of cooling chamber
Inventor: REIMANN WILFRIED
IPC: G03G15/20
Filed: 1990-10-30
Abstract: A radiator is provided in an enclosed housing with a preheating and cooling arrangement as well as a transporter for the copy carrier. An air scoop (8) with an air inlet opening is provided in a cooling chamber (1). Air outlet openings (10,13) are provided in preheating and cooling areas at the bottom of the cooling chamber. Control surfaces are provided inside the air scoop. The air outlets extend over the complete width of the copy carrier (5). Alternatively, they are in the form of adjustable slots. The copy carrier can be separate sheets or a continuous paper web, the transporter being a metal sheet (4). The heat radiator (2) is centrally placed with a glass pane (3) below. ADVANTAGE - Regular fixing at min. constructive expenditure.
Patent DE-4038710-A1 (DE)
Title: Terminal block in aircraft - has base parts with tenon over half their width and mortice over half width
Inventor: KIRMA SAFA
IPC: H01R13/514
Filed: 1990-12-05
Abstract: The terminal block comprises an upper body and a slightly larger base. Each side of the base carries a tenon (5) for half its width, and a mortise (6) for the other half so that blocks can be dovetailed together to form a row. A finishing block (11) at each end completes a row. The terminals for electrical connection are arranged as ten per block in two rows of five, aligned vertically within the blocks. USE/ADVANTAGE - Terminal block for the aerospace industry is lightweight and small; rapid addition or removal of blocks to a row.
Patent DE-4039220-A1 (DE)
Inventor: BODENMUELLER OSWALD
IPC: C08G18/42
Filed: 1990-12-08
Abstract: A coating is disclosed based on polyesters and isocyanates, which is characterized by containing as a binder a mixture of (a) 30 to 94 wt% of at least a polyester resin containing hydroxyl groups, having a hydroxyl number from 40 to 140 mgKOH/g and an oil content from 25 to 57%; (b) 3 to 15 wt% of at least a branched polyester containing hydroxyl groups based on cycloaliphatic and/or aromatic di- and/or polycarboxylic acids with a hydroxyl number from 100 to 200 mgKO/g and a trifunctional and/or higher alcohol and/or carboxylic acid content of at least 15 moles %, referred to the alcohol and carboxylic acid total content; and (c) 3 to 15 wt % of at least one polyester modified by synthetic fatty acids having a hydroxyl number from 80 to 150 KOH/g and a synthetic fatty acid contect from 35 to 50 wt%, referred to the weight of the modified polyester. The sum of the parts by weight of components (a) to (c) equals 100 wt %.
Patent DE-4039536-A1 (DE)
Title: Encapsulated semiconductor device - has bond formed by melting tip of thin wire and pressing onto contact spot
Inventor: TSUMURA KIYOAKI
IPC: H01L21/60
Filed: 1990-12-11
Abstract: The semiconductor device consists of a semiconductor chip (1), an electrode contact spot (4) on the clip, an inner terminal conductor (5), a thin metal wire (6), providing an electrical connection between (5 and 4), and casting resin (8) encapsulating all these components. The contact spot and metal wire are bonded by melting the tip of the wire to form a ball of metal and pressing this against the contact spot so that the ball is compressed to a height of 5-15 microns. The other tip of the wire is bonded to the inner terminal conductor. The wire pref. consists of an alloy contg. Au as main constituent. The contact spot is pref. an Al alloy or a thin film of Al, BPSG (glass contg. B and P) and silicon dioxide. ADVANTAGE - Bond structure minimises stress between chip and resin during dip-soldering after moisture absorption, hence no cracks form in silicon.
Patent DE-4041816-A1 (DE)
Title: Sight glass fitting - has transparent disc with inclined coupling surface engaged by similar surface of counterposed flange
IPC: B65D25/54
Filed: 1990-12-24
Abstract: The transparent disc (10) has an inclined coupling surface (14) opposite to a sealing surface (12), its inclination being such that it forms an angle of 10 to 25 deg. to the sealing surface. The sealing surface is flat and plain on both sides, and between it and a face surface (4) of the flange (2) a sealing ring (8) is fitted. A viewing surface (13) of the disc (10) surrounded by the inclined coupling surface (14) has a dia. equal to or greater than the inner dia. of the sealing ring (8). The sealing ring is secured on its outer periphery by a support ring (9). This ring has a centre union (11) which engages over the flange and the transparent disc (10) on their periphery. USE - As a sight glass for gas-form or fluid media.
Patent DE-4042526-A1 (DE)
Title: Brake used as mechanical energy storage system in motor vehicle
IPC: F03G1/08
Filed: 1990-06-11
Abstract: A wheel rotating about an axis is equipped with an outer ring of retaining prongs and an inner ring of retaining claws, equal in number but tangentially offset w.r.t. the prongs, which are joined together by unstretched springs. An engagement prong, on the end of a straight rod aligned precisely with a radius of the wheel, executes half-sinusoidal oscillations which stretch the springs sufficiently far to be caught and held by the claws. The energy stored in the springs is released into reverse linear movements of the rod.
Patent DE-4104511-A1 (DE)
Inventor: LANGE KARL-HEINZ
IPC: A45D1/18
Filed: 1991-02-14
Abstract: Described is a curler for a hair-care appliance, the curler having a bearer element (80) fitted with means for mounting several strips (13). The strips (13) can be brought into various positions by means of adjusting means in order to vary the external diameter of the curler. Each strip (13) has a recess (39) extending along the whole of its length, and the sections of an adjacent strip physically interlock with the recess when the strips are in the appropriate position. An additional feature designed to increase the stability of the curler is the fact that the strips (13) are mounted on the bearer element (80) so that they can be moved longitudinally.
Patent DE-4107845-A1 (DE)
Title: Storage vessel for high pressure gas - has filler opening sealed by plug with circumferential ridges
Inventor: MUENZEL WOLF-D DR ING
IPC: F17C5/06
Filed: 1991-03-12
Abstract: A high pressure vessel for containing a high pressure gas has a filler opening (6). The vessel is filled by placing it in a high pressure chamber containing gas at the required pressure. A plug (4) with circumferential ridges is pressed into the bore of the filler opening. The outside diameter of the ridges is slightly larger than the bore so that the plug is retained in the opening. The vessel is then removed from the chamber and the plug is secured by a plain second plug (5) which is retained by welding. USE/ADVANTAGE - High pressure vessel for storing high pressure gas for safety air bags for motor vehicles. The vessel is sealed by a simple procedure.
Patent DE-4107905-A1 (DE)
Title: Cylindrical sieve mfg. - applies ribs to flat material with slits outside the ribs before bending into cylinder
Inventor: EHMCKE WOLFGANG DIPL ING
IPC: B07B1/18
Filed: 1991-03-12
Abstract: To develop a slitted sieve body, to sort fibre suspensions, initially a flat plate-shaped material is formed with ribs on the surface. Slits are formed in the material, at right angles to the ribs but without cutting into them. The material is bent into a cylinder, at right angles to the ribs, and the edges are secured to each other where they meet to give the cylindrical sieve. Reinforcement ring(s) can be shrunk in place over the circular ribs formed round the cylindrical sieve body, after the facing surfaces of the sieve cylinder and the rings have been treated. Before the material is curved into the cylinder, the surfaces between and outside the ribs are hollowed out into a concave shape. The slits are formed in the flat material through flat parallel reference walls, and they are then expanded by bending by a given angle against the actual bending direction, and then expanded at least at the rib zones towards the ribbed side of the flat material. The slits can also be expanded over their whole length. The ribs are rolled or welded to the surface of the flat material, and have a convex rounded shape near the slits, or they are pointed at the slitted zones. The slits run over the whole axial length of the cylindrical sieve body. ADVANTAGE - The method gives a sieve cylinder of high stability with min. mfg. costs, with a max. slitted surface for the sieve action.
Patent DE-4107994-A1 (DE)
Title: Pipeline seal fitted between two opposing cylindrical surfaces - has internal cavity, open to outside by aperture, and in which removable sliding aid is stored
Inventor: BECKMANN JOERG DIPL ING
IPC: E03F3/04
Filed: 1991-03-13
Abstract: A pipeline sealing ring (9) is fitted in the gap (10) between the cylindrical surfaces of a pipeline socket (12) and inserted pipeline end (11). The sealing ring has an interval cavity (7), open to the outside by an aperture (13). A sliding aid (4) is stored in the cavity and removed before assembly to help the pipeline end and socket slide together, without damaging the seal. ADVANTAGE - The sliding aid remains in perfect condition in the cavity until needed for assembly.